This guidebook is full of designs for building inexpensive chemistry tools. It is volume 2 of 3, produced as part of the Inexpensive Science Teaching Equipment Project at the University of Maryland in the early 1970s. The designs are meant for developing countries, but can be useful to teachers and students everywhere. Project Director: Dr David Lockard; Guidebooks Director: Reginald Melton. NOTE: Item C1, Fuel System for Gas Burner, p.43, is potentially DANGEROUS, and MUST be properly used and maintained.